JPH0349001B2 - - Google Patents
Info
- Publication number
- JPH0349001B2 JPH0349001B2 JP59109582A JP10958284A JPH0349001B2 JP H0349001 B2 JPH0349001 B2 JP H0349001B2 JP 59109582 A JP59109582 A JP 59109582A JP 10958284 A JP10958284 A JP 10958284A JP H0349001 B2 JPH0349001 B2 JP H0349001B2
- Authority
- JP
- Japan
- Prior art keywords
- steam
- boiler
- water
- valve
- containers
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000000126 substance Substances 0.000 claims description 54
- 239000007788 liquid Substances 0.000 claims description 41
- 238000004891 communication Methods 0.000 claims description 25
- 239000000243 solution Substances 0.000 claims description 18
- 238000002347 injection Methods 0.000 claims description 13
- 239000007924 injection Substances 0.000 claims description 13
- 230000005855 radiation Effects 0.000 claims description 10
- 230000005494 condensation Effects 0.000 claims description 4
- 238000009833 condensation Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 67
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000009972 noncorrosive effect Effects 0.000 description 2
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 2
- 229940123973 Oxygen scavenger Drugs 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、蒸気ボイラにおいて、ボイラ水の濃
縮によるスケール障害或いは低アルカリや溶存酸
素による接水部の腐食を防止するために、ボイラ
水に種々の薬品を投入するのに用いられる自動注
液装置に関し、特に全ブローダウン時等の後、薬
液をボイラに基礎投入するのに用いられる自動注
液装置に関する。Detailed Description of the Invention (Industrial Field of Application) The present invention is aimed at preventing scale damage caused by condensation of boiler water or corrosion of water-contacted parts due to low alkali or dissolved oxygen in steam boilers. The present invention relates to an automatic liquid injection device used to charge various chemicals, and particularly to an automatic liquid injection device used to basically feed chemical solutions into a boiler after a complete blowdown or the like.
（従来の技術）
一般に、蒸気ボイラを長期間使用すると、ボイ
ラ水が濃縮し、そのためスケールが付着して伝熱
効率を低下させる等の障害を生じ、また給水直後
のボイラ水は比較的アルカリ度（PH）が低く、ま
た溶存酸素により接水部が腐食するので、そのよ
うな腐食を防止するため種々の薬品（主としてア
ルカリ液）がボイラ水に注入される。(Prior art) Generally, when a steam boiler is used for a long period of time, the boiler water becomes concentrated, causing problems such as scale adhesion and reducing heat transfer efficiency, and the boiler water immediately after water supply is relatively alkaline ( Since the pH (pH) is low and dissolved oxygen corrodes the parts in contact with the water, various chemicals (mainly alkaline liquid) are injected into the boiler water to prevent such corrosion.
従来の蒸気ボイラへの注液装置を第４図につい
て説明すると、蒸気ボイラ１に接続された給水管
２に、給水ポンプ３と、主として往復動型のケミ
カルポンプ５が並列状態に設置され、給水ポンプ
３が稼動すれば、自動的にケミカルポンプ５も作
動して薬液タンク４内の薬液をボイラ水に投入し
ていた。なお図中、９は逆止弁を示す。 To explain a conventional liquid injection device for a steam boiler with reference to FIG. 4, a water supply pump 3 and a mainly reciprocating type chemical pump 5 are installed in parallel in a water supply pipe 2 connected to a steam boiler 1. When the pump 3 was operated, the chemical pump 5 was also automatically operated and the chemical solution in the chemical solution tank 4 was thrown into the boiler water. In addition, in the figure, 9 indicates a check valve.
しかしながら、上記のようなものでは、蒸気ボ
イラ１は一種の濃縮器であるので、このような運
転を継続すればボイラ水は過濃縮になり、気水共
発などを引き起こすことになるので、連続或いは
間欠的に少量のブローダウン（ボイラ水の吹き出
し）をし、このブローダウンした水を給水して補
給するようにして、ボイラ水の濃縮を或る一定範
囲内に保つようにしていた。 However, in the above-mentioned system, the steam boiler 1 is a kind of concentrator, so if the operation continues like this, the boiler water will become overconcentrated and cause co-generation of steam and water. Alternatively, a small amount of blowdown (blowout of boiler water) is performed intermittently, and this blowdown water is supplied to replenish the boiler water in order to maintain the concentration of boiler water within a certain range.
上記のような連続的或いは間欠的なブローダウ
ンでも、ボイラ水の流動の部分的に悪い個所には
スラツジなどが堆積するので、一般には定期的に
全ブローダウンしなくてはならず、全ブローダウ
ン後は再び新しい水を全量給水することになるの
で、たとえ前記のようにケミカルポンプが作動し
たとしても、このような全量給水中は、ボイラ内
の圧力が低いため特にターボ型の給水ポンプでは
その特性上、吐出量が多くなるのに対し、通常の
往復動型のケミカルポンプでは吐出量が一定であ
るため、同じ時間内の給水量に対する注液量が少
なくなり、そのために、ボイラ水は低アルカリ度
になり、また給水の温度によつては、溶存酸素が
多量に運び込まれ腐食の原因になることがしばし
ばあつた。 Even with continuous or intermittent blowdown as described above, sludge and the like will accumulate in areas where boiler water flow is partially poor, so generally complete blowdown must be carried out periodically. After the water is down, new water must be supplied again, so even if the chemical pump operates as described above, the pressure inside the boiler is low during such full water supply, especially with turbo-type water pumps. Due to its characteristics, the discharge amount is large, whereas with a normal reciprocating chemical pump, the discharge amount is constant, so the amount of liquid injected for the same amount of water supply during the same time is small, so the boiler water Depending on the low alkalinity and temperature of the feed water, large amounts of dissolved oxygen were often carried in, causing corrosion.
そこで、全ブローダウン後に一定量の薬液を注
入するために、同図にも示すように、給水管２の
途中に、薬液タンク６に弁V1を介して接続され
た容器７を、弁V4，V5を備えた導管８によつて
並列に接続した注液装置１０が考えられている。
なお図中、V2，V3は、容器７の排液側と給水管
２の途中にそれぞれ設けられた弁を示す。 Therefore, in order to inject a certain amount of chemical solution after the complete blowdown, a container 7 connected to the chemical solution tank 6 via valve V 1 is installed in the middle of the water supply pipe 2, as shown in the figure. A liquid injection device 10 connected in parallel by a conduit 8 with 4 and V 5 is considered.
In the figure, V 2 and V 3 indicate valves provided on the drain side of the container 7 and in the middle of the water supply pipe 2, respectively.
上記の注液装置１０は、全ブローダウン後に、
弁V1，V4，V5を閉じV2を開けて先ず容器７を空
にしてからV2を閉じ、V1を開けて必要量の薬液
をタンク６から容器７に貯えておき、蒸気ボイラ
１に注薬するとき、弁V1，V3を閉じ、V4，V5を
開くと、給水ポンプ３による給水によつて、導管
８を経て容器７内の薬液がボイラ１へ投入され
る。しかしながら、この装置は、弁操作が複雑な
ため、弁の誤動作の恐れがある等の欠点があつ
た。 The above liquid injection device 10, after complete blowdown,
Close valves V 1 , V 4 , and V 5 and open V 2 to empty container 7 first, then close V 2 and open V 1 to store the required amount of chemical solution from tank 6 to container 7, and then release the vapor. When adding medicine to the boiler 1, when valves V 1 and V 3 are closed and V 4 and V 5 are opened, the chemical solution in the container 7 is injected into the boiler 1 through the conduit 8 by the water supply from the water supply pump 3. Ru. However, this device has drawbacks such as the risk of valve malfunction due to the complicated valve operation.
（発明が解決しようとする問題点）
本発明は、上記した従来技術の欠点を除去し、
全ブローダウン時等の後のアルカリ度を適正値に
アツプし、併せて溶存酸素に起因する腐食を防止
するための薬液を、簡単な構造及び操作で、所定
量、短時間に基礎投入することを目的としてい
る。(Problems to be Solved by the Invention) The present invention eliminates the drawbacks of the prior art described above, and
To increase the alkalinity to an appropriate value after complete blowdown, etc., and to simultaneously inject a predetermined amount of chemical solution in a short time with a simple structure and operation to prevent corrosion caused by dissolved oxygen. It is an object.
（問題点を解決するための手段）
本発明は、蒸気ボイラの蒸気部と、薬液タンク
に連通されるとともに外気に放熱可能とされ、放
熱時の蒸気凝縮を利用し、該薬液タンクから薬液
を吸引する構成とされた容器類とを蒸気連絡管で
連通し、その途中に弁を設け、上記容器類を、弁
を設けた連絡管を経て蒸気ボイラの液部に連通さ
せ、方熱により容器類に充満された薬液をボイラ
に基礎投入させるようにしたことを特徴としてい
る。(Means for Solving the Problems) The present invention communicates the steam section of a steam boiler with a chemical tank and allows heat to be radiated to the outside air, and utilizes steam condensation during heat radiation to drain the chemical liquid from the chemical tank. A steam communication pipe is used to connect the containers with the suction structure, and a valve is provided in the middle of the pipe, and the containers are communicated with the liquid part of the steam boiler through the valve-equipped communication pipe, and the container is heated by direct heat. It is characterized by the fact that the chemical solution filled in the boiler is basically fed into the boiler.
（作用）
上記のように構成したことにより、蒸気ボイラ
が作動中、蒸気連絡管に設けた弁を開くと、蒸気
ボイラの上部に溜まつた蒸気は、蒸気連絡管を経
て上記容器類に流入し、その途中の該連絡管、弁
及び容器類での放熱により蒸気は凝縮し、凝縮水
は薬液注入連絡管上の弁を開くと蒸気ボイラへ回
収される。(Function) With the above configuration, when the valve installed in the steam communication pipe is opened while the steam boiler is in operation, the steam accumulated in the upper part of the steam boiler will flow into the containers mentioned above through the steam communication pipe. However, the steam is condensed due to heat radiation in the connecting pipe, valves, and containers along the way, and the condensed water is recovered to the steam boiler when the valve on the chemical injection connecting pipe is opened.
このようにして容器類内に蒸気が充満したとこ
ろで両弁を閉じれば、該容器類の表面からの放熱
で、閉じ込められた蒸気は更に凝縮して遂には負
圧状態になるので、薬液タンクの薬液は、逆止弁
を経て容器類内に吸入される。 If both valves are closed when the containers are filled with steam in this way, the trapped steam will further condense due to heat radiation from the surface of the containers, and will eventually reach a negative pressure state. The medicinal solution is sucked into containers through a check valve.
上記のように容器類に吸入された薬液は、ボイ
ラ水を全ブローダウンして新しい水をボイラ内に
張つた直後のアルカリ度の低いボイラ水に、両弁
を開き連絡管を経て投入される。この投入作用に
は、落差を利用する外、給水管内の給水によるエ
ゼクタ作用（吸引作用）を利用することも可能で
ある。 The chemical solution sucked into the containers as described above is poured into the boiler water with low alkalinity immediately after all the boiler water is blown down and new water is filled into the boiler through the connecting pipe with both valves opened. . For this charging action, in addition to using the head, it is also possible to use an ejector action (suction action) due to the water supply in the water supply pipe.
（実施例） 次に、本発明の実施例を図面と共に説明する。(Example) Next, embodiments of the present invention will be described with reference to the drawings.
第１図は、本発明の第１実施例を示す蒸気ボイ
ラの自動注液装置のフローシートによる説明図で
あつて、この図に示す符号のうち、第４図に示す
符号と同一のものは、同一ないし同類部分を示す
ものとする。 FIG. 1 is an explanatory diagram using a flow sheet of an automatic liquid injection device for a steam boiler showing a first embodiment of the present invention, and among the reference numerals shown in this figure, the same ones as those shown in FIG. , shall indicate the same or similar parts.
図において、蒸気ボイラ１は給水管２を経て給
水ポンプ３によつて給水され、給水ポンプと連動
するケミカルポンプ５によつて給水時に薬液タン
ク４より薬液が注入される点は従来のものと変り
はない。しかし本実施例では、給水管２とは連絡
管１３を介して、また蒸気ボイラ１の上部の蒸気
部とは蒸気連絡管１４を介してそれぞれ接続され
且つ壁面より放熱され易い構成とされたボンベ１
５が設けられており、両連絡管１３と１４には、
それぞれ弁１６と１７が設けられ、またボンベ１
５は、薬液を収容した薬液タンク１８に、薬液吸
込管１９を介して接続され、途中に逆止弁２０が
設けられている。なお、上記弁１６及び１７は、
止め弁、電磁弁等、適宜のものが使用される。 In the figure, water is supplied to the steam boiler 1 via a water supply pipe 2 by a water supply pump 3, and chemical liquid is injected from a chemical liquid tank 4 during water supply by a chemical pump 5 that works with the water supply pump, which is different from the conventional one. There isn't. However, in this embodiment, the cylinder is connected to the water supply pipe 2 via the communication pipe 13 and to the upper steam section of the steam boiler 1 via the steam communication pipe 14, and is configured to facilitate heat dissipation from the wall surface. 1
5 is provided, and both connecting pipes 13 and 14 are provided with
Valves 16 and 17 are provided respectively, and cylinder 1
5 is connected to a chemical liquid tank 18 containing a chemical liquid via a chemical liquid suction pipe 19, and a check valve 20 is provided in the middle. Note that the valves 16 and 17 are
Appropriate stop valves, solenoid valves, etc. are used.
作動に当り、ボイラ１で発生した蒸気は、弁１
７を開くと蒸気連絡管１４を経てボンベ１５へ流
入する。この蒸気は連絡管１４、弁１７、ボンベ
１５で放熱して凝縮し、凝縮水は、弁１６を開く
と連絡管１３を経て給水管２に入りボイラ１に回
収される。なお、この凝縮水には、ボイラを最初
に起蒸した場合には空気中のO2、N2、CO2等が
溶存している場合もある。上記のようにしてボン
ベ１５内に蒸気が充満したとき、弁１６と１７を
閉じると、ボンベ１５の表面からの放熱で、閉じ
込められた蒸気は更に凝縮してボンベ１５内は遂
には負圧状態となる。従つて、薬液タンク１８の
薬液は、逆止弁２０を経てボンベ１５内に吸入さ
れる。 During operation, steam generated in boiler 1 is passed through valve 1.
7 is opened, steam flows into the cylinder 15 via the steam communication pipe 14. This steam radiates heat and condenses in the connecting pipe 14, valve 17, and cylinder 15, and when the valve 16 is opened, the condensed water enters the water supply pipe 2 through the connecting pipe 13 and is recovered in the boiler 1. Note that this condensed water may contain dissolved O 2 , N 2 , CO 2 , etc. in the air when the boiler is first steamed. When the cylinder 15 is filled with steam as described above, when the valves 16 and 17 are closed, the trapped steam is further condensed due to heat radiation from the surface of the cylinder 15, and the inside of the cylinder 15 is finally brought into a negative pressure state. becomes. Therefore, the chemical liquid in the chemical liquid tank 18 is sucked into the cylinder 15 through the check valve 20.
一方、ボイラ水を全ブローダウンして新しい水
を給水した直後のボイラ１内の水は、アルカリ度
が低く、これを高くしなければならず、また脱酸
素剤（溶存酸素と置換するもので、ヒドラジン、
亜硫酸ソーダ等がある。）なども必要とするので、
薬液の基礎投入は、この時に必要となる。 On the other hand, the water in boiler 1 immediately after blowing down all the boiler water and supplying new water has a low alkalinity, which must be increased, and an oxygen scavenger (one that replaces dissolved oxygen) , hydrazine,
Examples include sodium sulfite. ) etc. are also required, so
Basic injection of chemical solution is required at this time.
そこで、前記両開閉弁１７と１６を開くと、蒸
気ボイラ１、蒸気連絡管１４、ボンベ１５、連絡
管１３及び給水管２はすべて連通されるので、ボ
ンベ１５内に吸引された薬液は、落差によりボイ
ラ１に流入する。 Therefore, when both the on-off valves 17 and 16 are opened, the steam boiler 1, the steam communication pipe 14, the cylinder 15, the communication pipe 13, and the water supply pipe 2 are all communicated with each other, so that the chemical liquid sucked into the cylinder 15 is The water flows into the boiler 1 due to this.
この実施例によれば、２個の弁を開閉操作する
ことによりボンベ１５内に、ボイラ１内の保有水
量と水質によつて見合つた量の薬液を、蒸気ボイ
ラからの蒸気を放熱により凝縮させたときの負圧
発生を利用して、外力を何等加えることなく、薬
液タンクより吸引させることができ、またこのボ
ンベ内の薬液を、ボイラ水を全ブローダウンさせ
たあとボイラ内に基礎投入させることにより、ボ
イラ水は適度に薬液処理され、否腐食性のボイラ
水として置換される。 According to this embodiment, by opening and closing two valves, an amount of chemical liquid is placed in the cylinder 15 according to the amount of water held in the boiler 1 and the water quality, and the steam from the steam boiler is condensed by heat radiation. By using the negative pressure generated when the boiler is heated, the chemical solution can be sucked from the chemical tank without applying any external force, and the chemical solution in this cylinder can be basically injected into the boiler after all the boiler water has been blown down. As a result, the boiler water is appropriately treated with a chemical solution and replaced with non-corrosive boiler water.
第２図は、本発明の第２実施例を示すフローシ
ートであつて、蒸気ボイラ１とボンベ１５とを接
続する蒸気連絡管１４の一部１４ａ及び弁１７ａ
が、ボンベ１５と給水管２を接続する連絡管１３
の一部及び開閉弁と兼用されている点で、第１実
施例（第１図）と異なつている。 FIG. 2 is a flow sheet showing a second embodiment of the present invention, in which a part 14a of the steam communication pipe 14 and a valve 17a connecting the steam boiler 1 and the cylinder 15 are shown.
However, the connecting pipe 13 connecting the cylinder 15 and the water supply pipe 2
It differs from the first embodiment (FIG. 1) in that it is also used as a part of the valve and an on-off valve.
作動に当り、この実施例では、弁１７ａを開い
て蒸気をボンベ１５へ導入し、放熱により凝縮水
となつて連絡管１４ａ及び１３より流下する時点
で該弁１７ａを閉じる。すると、ボンベ１５内に
閉じ込められた蒸気は放熱により更に凝縮して負
圧を発生し、薬液タンク１８より薬液を吸込む。
なお、このボンベ１５内に吸込まれた薬液は、必
要に応じて即ち全ブローダウン後の給水時の或い
は給水直後の基礎投入に、或いは通常のケミカル
ポンプ５が故障したときに、ボイラ水を投入され
ることは第１実施例と変りはない。 In operation, this embodiment opens the valve 17a to introduce steam into the cylinder 15, and closes the valve 17a when it becomes condensed water due to heat radiation and flows down through the communication pipes 14a and 13. Then, the vapor trapped in the cylinder 15 is further condensed due to heat radiation to generate negative pressure, and the chemical liquid is sucked from the chemical liquid tank 18.
The chemical liquid sucked into this cylinder 15 can be used as needed, that is, when water is supplied after complete blowdown, or when the basic supply is immediately after water supply, or when the normal chemical pump 5 breaks down, boiler water can be supplied. What is done is the same as in the first embodiment.
この実施例によれば、第１実施例と比べてボン
ベ１５への配管（連絡管）の一部及び弁が１個兼
用することにより省略されているので、それだ
け、コストが低減される利点がある。 According to this embodiment, compared to the first embodiment, a part of the piping (connecting pipe) to the cylinder 15 and a valve are omitted by serving as one, so there is an advantage that the cost is reduced accordingly. be.
第３図は、本発明の第３実施例を示すフローシ
ートであつて、蒸気ボイラ１とボンベ１５とを接
続する蒸気連絡管１４ｂ及び弁１７ｂが、ボンベ
１５の薬液をボイラ１へ流入させるための連絡管
と開閉弁とをすべて兼用させている点で、第１及
び第２実施例（第１図及び第２図）と異なつてい
る。 FIG. 3 is a flow sheet showing a third embodiment of the present invention, in which a steam communication pipe 14b and a valve 17b connecting the steam boiler 1 and the cylinder 15 allow the chemical liquid in the cylinder 15 to flow into the boiler 1. This embodiment differs from the first and second embodiments (FIGS. 1 and 2) in that all of the communication pipes and on-off valves are used in common.
作動に当り、この実施例では、ボンベ１５内に
薬液タンク１８から薬液を吸込む過程は第２実施
例と変りはないが、該ボンベ１５内の薬液をボイ
ラ内に投入する際、蒸気連絡管と同じ連絡管１４
ｂを経て、ボイラ１内へ直接投入される。 In operation, in this embodiment, the process of sucking the chemical liquid into the cylinder 15 from the chemical liquid tank 18 is the same as in the second embodiment, but when the chemical liquid in the cylinder 15 is put into the boiler, the steam communication pipe and Same connecting pipe 14
b, and is directly thrown into the boiler 1.
この実施例によれば、第２実施例より更に配管
が簡略化されているので、それだけコストが低減
できる。しかしこの場合の連絡管１４ｂは、毛細
管現象を防ぐために、例えば1/2インチ口径位か
又はそれ以上の太い管が必要となる。この点は、
第２図の連絡管１４ａ、弁１７ａも同じである。 According to this embodiment, the piping is further simplified than in the second embodiment, so the cost can be reduced accordingly. However, in this case, the communication tube 14b needs to be a thick tube with a diameter of about 1/2 inch or more, for example, in order to prevent capillarity. This point is
The same applies to the communication pipe 14a and valve 17a in FIG.
なお、上記各実施例において、薬液を吸込んで
貯溜する容器をボンベとして説明したが、要する
に、内部に閉じ込められた蒸気を放熱によつて凝
縮させ、負圧を発生させて薬液をタンクより吸込
んで一時貯溜するものであればよく、ボンベや容
器に限らず、放熱されることのできる管状体であ
つてもよい。本明細書では、これらを含めて「容
器類」という。 In each of the above embodiments, the container that sucks in and stores the chemical liquid is described as a cylinder, but in short, the vapor trapped inside is condensed by heat radiation, generating negative pressure, and the chemical liquid is sucked from the tank. It may be anything that can be temporarily stored, and is not limited to a cylinder or a container, but may be a tubular body that can radiate heat. In this specification, these items are collectively referred to as "containers."
また、上記容器類に吸込まれた薬液をボイラへ
投入させるのに、該容器類をボイラ水面より高く
設置し、その落差を利用したものについて説明し
たが、該容器類よりの薬液を、給水管を流れる水
流による吸引作用、例えばエゼクタ作用等によつ
て吸込ませてボイラ水に注液するように構成する
ことも可能である。 In addition, in order to introduce the chemical liquid sucked into the containers into the boiler, we have explained that the containers are installed higher than the boiler water level and the drop is used. It is also possible to configure the boiler water to be injected into the boiler water by suction action by a flowing water flow, for example, by an ejector action.
（発明の効果）
以上説明したように、本発明によれば、１個又
は２個の弁を開閉させる簡単な操作により、容器
類内に、ボイラから導入された蒸気を放熱させて
凝縮し負圧吸引作用を発生させるなど、外力を何
等必要とすることなく、放熱時の蒸気凝縮を利用
することによつて薬液をタンクより吸引させるこ
とができ、またこの容器類の薬液を、ボイラ水の
全ブローダウン時等のあと、１個又は２個の弁を
開閉させるだけで特別の操作を必要とすることな
く、落差又は給水による吸引作用等を利用してボ
イラ内に基礎投入させることができ、ボイラ水を
適度に薬液処理して否腐食性のボイラ水として置
換させることができる。(Effects of the Invention) As explained above, according to the present invention, by a simple operation of opening and closing one or two valves, steam introduced from a boiler is radiated and condensed into containers, causing a negative impact. The chemical solution can be sucked out of the tank by utilizing steam condensation during heat dissipation, without requiring any external force such as generating pressure suction action. After complete blowdown, etc., the base can be poured into the boiler using the suction effect of the head or water supply, without requiring any special operations, just by opening and closing one or two valves. By appropriately treating the boiler water with a chemical solution, it is possible to replace the boiler water with non-corrosive boiler water.
第１図ないし第３図は、本発明の第１ないし第
３実施例を示す蒸気ボイラの自動注液装置のフロ
ーシート、第４図は従来のこの種の注液装置のフ
ローシートである。
１……蒸気ボイラ、２……給水管、３……給水
ポンプ、５……ケミカルポンプ、１３……連絡
管、１４，１４ａ，１４ｂ……蒸気連絡管、１５
……ボンベ（容器類）、１６，１７，１７ａ，１
７ｂ……弁、１８……薬液タンク。
1 to 3 are flow sheets of an automatic liquid injection device for a steam boiler showing first to third embodiments of the present invention, and FIG. 4 is a flow sheet of a conventional liquid injection device of this type. 1... Steam boiler, 2... Water supply pipe, 3... Water supply pump, 5... Chemical pump, 13... Communication pipe, 14, 14a, 14b... Steam communication pipe, 15
...Cylinder (containers), 16, 17, 17a, 1
7b... Valve, 18... Chemical tank.
Claims (1)
れるとともに外気に放熱可能とされ、放熱時の蒸
気凝縮を利用し、該薬液タンクから薬液を吸引す
る構成とされた容器類とを蒸気連絡管で連通し、
その途中に弁を設け、上記容器類を、弁を設けた
連絡管を経て蒸気ボイラの液部に連通させ、放熱
により容器類に充満された薬液をボイラに基礎投
入させるようにしたことを特徴とする蒸気ボイラ
の自動注液装置。 ２ 上記蒸気連絡管の途中に設けられる第１の弁
を前記容器類の上方に設け、蒸気ボイラの液部に
連通する連絡管に設けられる第２の弁を、該容器
類の下方に設けた特許請求の範囲第１項記載の蒸
気ボイラの自動注液装置。 ３ 上記蒸気連絡管の途中に設けられる第１の弁
と、容器類と蒸気ボイラの液部とを連通する連絡
管に設けられる第２の弁とを共通とし、蒸気連絡
管と蒸気ボイラ液部とを連通する連絡管の少くと
も一部を共通とした特許請求の範囲第１項記載の
蒸気ボイラの自動注液装置。[Scope of Claims] 1. A container that communicates with the steam section of a steam boiler and a chemical liquid tank, is capable of radiating heat to the outside air, and is configured to draw chemical liquid from the chemical liquid tank by utilizing steam condensation during heat radiation. and the like through steam communication pipes,
A valve is provided in the middle, and the containers are communicated with the liquid part of the steam boiler through a connecting pipe provided with the valve, and the chemical solution filled in the containers is basically introduced into the boiler by heat radiation. Automatic liquid injection device for steam boilers. 2. A first valve provided in the middle of the steam communication pipe is provided above the containers, and a second valve provided in the communication pipe communicating with the liquid part of the steam boiler is provided below the containers. An automatic liquid injection device for a steam boiler according to claim 1. 3 The first valve provided in the middle of the steam communication pipe and the second valve provided in the communication pipe that communicates the containers and the liquid part of the steam boiler are common, and the steam communication pipe and the liquid part of the steam boiler are connected in common. The automatic liquid injection device for a steam boiler according to claim 1, wherein at least a part of the communication pipe communicating with the two is common.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10958284A JPS60253702A (en) | 1984-05-31 | 1984-05-31 | Automatic liquid injector for steam boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10958284A JPS60253702A (en) | 1984-05-31 | 1984-05-31 | Automatic liquid injector for steam boiler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60253702A JPS60253702A (en) | 1985-12-14 |
| JPH0349001B2 true JPH0349001B2 (en) | 1991-07-26 |
Family
ID=14513921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10958284A Granted JPS60253702A (en) | 1984-05-31 | 1984-05-31 | Automatic liquid injector for steam boiler |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60253702A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60263001A (en) * | 1984-06-08 | 1985-12-26 | 株式会社 丸山製作所 | Foundation charging method of boiler compound and device thereof |
| CN102374522B (en) * | 2011-12-13 | 2013-07-10 | 长沙市中蓝清洗技术有限公司 | Cleaning device for cleaning boiler |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5112002A (en) * | 1974-07-18 | 1976-01-30 | Ebara Mfg | Boiraniokeru jidoyakuekichunyusochi |
| JPS5652103B2 (en) * | 1974-05-30 | 1981-12-10 | ||
| JPS5832300B2 (en) * | 1978-04-10 | 1983-07-12 | 三洋電機株式会社 | Heat pump type refrigeration equipment |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5652103U (en) * | 1979-09-26 | 1981-05-08 | ||
| JPS5832300U (en) * | 1981-08-25 | 1983-03-02 | 株式会社荏原製作所 | Chemical injection device |
-
1984
- 1984-05-31 JP JP10958284A patent/JPS60253702A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5652103B2 (en) * | 1974-05-30 | 1981-12-10 | ||
| JPS5112002A (en) * | 1974-07-18 | 1976-01-30 | Ebara Mfg | Boiraniokeru jidoyakuekichunyusochi |
| JPS5832300B2 (en) * | 1978-04-10 | 1983-07-12 | 三洋電機株式会社 | Heat pump type refrigeration equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60253702A (en) | 1985-12-14 |
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